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There was a secret agency where could be able to create a system called synchronization. Recently, a private agent like Hiro got a job to investigate other world. His little sister, Yui intentionally skipped her school, then secretly followed him from behind with Eve, their humanoid maid.

Since they wouldn't return back to their home world for unknown time, they had to adapt the environment there. They made some connections with native people, they worked to get income and they got information through experience. Even, they also formed their base called Black Sync.

Table of BLACK SYNC : THE ADVENTURE OF A PRIVATE AGENT IN OTHER WORLD

Table of contents

Volume 1 :01